1. State Key Laboratory of Silicon Materials; Department of Materials Science and Engineering; Cyrus Tang Center for Sensor Materials and Application and Center for Chemistry of High-Performance and Novel Materials; Zhejiang University; Hangzhou 310027 China
2. Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices; Institute of Functional Nano & Soft Materials (FUNSOM); Soochow University; 199 Ren'ai Road Suzhou 215123 China
3. Department of Physics Chemistry and Biology (IFM); Linköping University; SE-581 83 Linköping Sweden
4. Institute of Advanced Materials; Nanjing Tech University; Nanjing 210009 China
5. Fraunhofer Institute for Solar Energy Systems ISE; Heidenhofstr. 2 79110 Freiburg Germany
6. Materials Research Centre FMF; University of Freiburg; Stefan-Meier-Str. 21 79104 Freiburg Germany